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【简答题】
为何硝态氮肥的施用可加重石灰性土壤上植物缺铁的程度? 2.为何磷肥的利用率较低?如何提高磷肥的利用率? 3.土壤钾可分为哪些类型?什么是速效钾? 4.简述施用微量元素肥料的注意事项。 5.复合肥的发展方向有哪些? 6. 铵态氮肥在水田条件下强调深施,试说明原因。
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【判断题】旅游投诉处理机构应当在受理投诉之日起30日内作出处理决定。( )
A.
正确
B.
错误
【单选题】. I could see that there was ______ arguing with her, but I could not help saying something about it.
A.
nothing better than
B.
anything better than
C.
no point
D.
no doubt
【单选题】《旅游投诉处理办法》第二十五条规定,旅游投诉处理机构应当在受理投诉之日起______日内作出处理决定。
A.
15
B.
30
C.
60
D.
90
【单选题】转速—电流双闭环不可逆系统正常稳定运转后,发现原定正向与机械要求的正方向相反,需改变电机运行方向。此时不应 。
A.
调换磁场接线
B.
调换电枢接线
C.
同时调换磁场和电枢接线
D.
同时调换磁场和测速发电机接线
【单选题】旅游投诉处理机构应当在受理投诉之日起( )天内,做出处理。
A.
10
B.
30
C.
60
D.
90
【单选题】Which of the following is NOT included in the charitable items of the BMGF?
A.
Global health issues.
B.
Child vaccines.
C.
Learning issues.
D.
Blend of head and heart.
【单选题】Which of the following domestically produced items is not included in GDP?
A.
A bottle of shampoo.
B.
A hairdryer.
C.
A haircut.
D.
All the items are included in GDP.
【单选题】Which of the following items is NOT included in the data that the researchers collected?
A.
Mucus production.
B.
Aches and pains.
C.
Sneezing or congestion.
D.
Blood test.
【单选题】I could just ______ a banner in the distance, but I could not see what's on it.
A.
see to
B.
clear up
C.
make out
D.
look at
【单选题】转速—电流双闭环不可逆系统正常稳定运转后,发现原定正向与机械要求的正方向相反,需改变电机运行方向。此时不应 。
A.
同时调换磁埸和测速发电机接线
B.
调换磁场接线
C.
调换电枢接线
D.
同时调换磁埸和电枢接线
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